Date: Sat, 25 Apr 2026 16:30:05 +0000 From: Enji Cooper <ngie@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Cc: Abdelkader Boudih <freebsd@seuros.com> Subject: git: 4dd720279f86 - stable/14 - asmc: Convert driver to CTLFLAG_MPSAFE Message-ID: <69ecec0d.44bc2.1126ad26@gitrepo.freebsd.org>
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The branch stable/14 has been updated by ngie: URL: https://cgit.FreeBSD.org/src/commit/?id=4dd720279f867c73c5ddbfbad926f4be1b5f1299 commit 4dd720279f867c73c5ddbfbad926f4be1b5f1299 Author: Abdelkader Boudih <freebsd@seuros.com> AuthorDate: 2026-02-13 03:00:22 +0000 Commit: Enji Cooper <ngie@FreeBSD.org> CommitDate: 2026-04-25 16:29:59 +0000 asmc: Convert driver to CTLFLAG_MPSAFE Replace CTLFLAG_NEEDGIANT with CTLFLAG_MPSAFE for all sysctls. The driver already uses spin mutexes (sc->sc_mtx) for hardware access protection and does not require the Giant lock. This improves scalability by allowing concurrent sysctl access without Giant serialization. Reviewed by: ngie, adrian Differential Revision: https://reviews.freebsd.org/D54613 (cherry picked from commit 1a6bdd6266e3b53c8b6b597a77a100353b7ae13a) --- sys/dev/asmc/asmc.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/sys/dev/asmc/asmc.c b/sys/dev/asmc/asmc.c index 5620c8c42d89..494cb7d75593 100644 --- a/sys/dev/asmc/asmc.c +++ b/sys/dev/asmc/asmc.c @@ -699,49 +699,49 @@ asmc_attach(device_t dev) SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sc->sc_fan_tree[i]), OID_AUTO, "id", - CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT, + CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, j, model->smc_fan_id, "I", "Fan ID"); SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sc->sc_fan_tree[i]), OID_AUTO, "speed", - CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, j, model->smc_fan_speed, "I", "Fan speed in RPM"); SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sc->sc_fan_tree[i]), OID_AUTO, "safespeed", - CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, j, model->smc_fan_safespeed, "I", "Fan safe speed in RPM"); SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sc->sc_fan_tree[i]), OID_AUTO, "minspeed", - CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, + CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, dev, j, model->smc_fan_minspeed, "I", "Fan minimum speed in RPM"); SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sc->sc_fan_tree[i]), OID_AUTO, "maxspeed", - CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, + CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, dev, j, model->smc_fan_maxspeed, "I", "Fan maximum speed in RPM"); SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sc->sc_fan_tree[i]), OID_AUTO, "targetspeed", - CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, + CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, dev, j, model->smc_fan_targetspeed, "I", "Fan target speed in RPM"); SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sc->sc_fan_tree[i]), OID_AUTO, "manual", - CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, + CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, dev, j, asmc_mb_sysctl_fanmanual, "I", "Fan manual mode (0=auto, 1=manual)"); } @@ -757,7 +757,7 @@ asmc_attach(device_t dev) SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sc->sc_temp_tree), OID_AUTO, model->smc_tempnames[i], - CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, i, asmc_temp_sysctl, "I", model->smc_tempdescs[i]); } @@ -774,14 +774,14 @@ asmc_attach(device_t dev) SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sc->sc_light_tree), OID_AUTO, "left", - CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, 0, model->smc_light_left, "I", "Keyboard backlight left sensor"); SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sc->sc_light_tree), OID_AUTO, "right", - CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, 0, model->smc_light_right, "I", "Keyboard backlight right sensor"); @@ -789,7 +789,7 @@ asmc_attach(device_t dev) SYSCTL_CHILDREN(sc->sc_light_tree), OID_AUTO, "control", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | - CTLFLAG_NEEDGIANT, dev, 0, + CTLFLAG_MPSAFE, dev, 0, model->smc_light_control, "I", "Keyboard backlight brightness control"); } @@ -807,21 +807,21 @@ asmc_attach(device_t dev) SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sc->sc_sms_tree), OID_AUTO, "x", - CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, 0, model->smc_sms_x, "I", "Sudden Motion Sensor X value"); SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sc->sc_sms_tree), OID_AUTO, "y", - CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, 0, model->smc_sms_y, "I", "Sudden Motion Sensor Y value"); SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sc->sc_sms_tree), OID_AUTO, "z", - CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, + CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, 0, model->smc_sms_z, "I", "Sudden Motion Sensor Z value");home | help
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